The CG can optionally be located more precisely on the main axis of the aircraft by using two separate cells lying against the front lower right and upper left parts of the body.  In this case, the cells would be wired in series using a custom-made Y connector. 
 

Step 2.  Motor and propeller.  The propeller is a right-handed airscrew and should spin in a clockwise direction when viewed from the rear of the aircraft.  Connect the battery and program your ESC according to the manufacturer's instructions.  Verify the direction of rotation of the prop when throttle is applied.  If it is wrong, switch any two of the three motor lead connections to rectify the situation.  Exercise extreme caution when handling an electric model with battery power applied.  Keep hands and other body parts well clear of the propeller.

I you happen to be using a rare pusher prop, which is a left-handed airscrew, then the rotation needs to be counterclockwise.  In either case, make sure that the front of the prop, with the size markings, faces toward the front of the aircraft.  A prop mounted backward will still work, albeit at reduced efficiency.  Note that an airscrew does not change its handedness when mounted backward.  In any event, if an upright Atmopod™ does not lift off at full throttle, the prop is probably spinning in the wrong direction.

Measure the all-up weight of your model by balancing it on the nose on a kitchen scale.  The reading should be in the neighborhood of 262 g (9.25 oz).  You can get a quick estimate of the stall thrust by applying full throttle and subtracting the weight from the new reading.  This maneuver is safer with an assistant operating the transmitter while you cautiously steady the upended aircraft, lightly holding on to two legs.
 

Step 3.  Control surfaces.  Set the transmitter parameters to achieve +- 45 degree travel in the two elevons and the rudder.  Use -50 exponential in each channel.  Implement elevon mixing for the elevons according to your radio system's instructions.  View your aircraft from the rear when setting the controls.  A right rudder input should move the rudder to the right, a left input to the left.  An up elevator input moves both elevons up, a down input moves them both down.  A right aileron input moves the right elevon up and the left elevon down, while a left aileron input moves the left elevon up and the right elevon down.

At this stage your four channels of proportional control are fully operational and your Atmopod™ VTOL is ready to fly.  If you are an experienced 3D aerobatic RC airplane pilot, you may feel confident enough to take the model to a nearby field and try flying it right away.  Do realize that this device is a different kind of air vehicle with unusual flight characteristics not found in conventional fixed wing aircraft or in helicopters, and takes some adjusting to.  We recommend that you first take some time to gain a better feel for its response and familiarize yourself with its handling in a more controlled environment.  The following exercises can be performed indoors in a small room and will help you climb up the learning curve without inflicting excessive damage to your model.
 

Step 4.  Floor exercises.  Roll control is a prominent issue in this design.  With a relatively large propeller spinning clockwise, the airframe will have a strong predilection to roll left.  Start out with floor exercises by setting the model on a smooth floor, such as concrete, tile, wood, or linoleum.  Give it just enough prop rpm to slide about on the ground with rudder and elevon inputs.  Practice canceling the natural roll tendency and guiding the vehicle in a predictable manner.  Note that on the floor the effects of rudder and elevator inputs are reversed.  For example, right rudder causes the vehicle to move to the left, and up elevator causes it to move in the direction of the body bottom.  On the other hand, right aileron input still produces a right roll.
 

This aircraft can take a lot of damage and be restored to flying condition in little time.  There is a noticeable increase in weight and degradation of performance with the accumulation of glue.  However, do not use the Atmopod™ with unrepaired weaknesses, since these compromise the integrity of the structure and may prematurely lead to its generalized failure. 
 

The device could be strapped horizontally on a floating platform and become an airboat.  A variable pitch propeller, providing reversible thrust, would expand the gamut of aerobatic maneuvers.  It would also allow the VTOL to right itself up from a side lying position on the ground and to stick to wall and ceiling by the feet.  Feel free to experiment safely.  If you come up with a cool idea, we would love to hear from you.  Please share your pictures and videos with us.